Selective herbicides based on substituted thien-3-yl-sulfonylamino(thio)carbonyltriazolin(thi)ones and safeners

ABSTRACT

The invention relates to selective herbicidal compositions that comprise an effective amount of an active compound combination comprising 
 
(a) one or more compounds of the formula (I)  
                 
 
in which Q 1 , Q 2 , R 1 , R 2 , R 3  and R 4  are as defined in the disclosure 
and salts of the compounds of the formula (I) and (b) at least one of the crop-plant-compatibility-improving compounds listed in the disclosure. The invention further relates to the use of these compositions for controlling undesirable vegetation and to a process for preparing the compositions according to the invention.

The invention relates to novel selective herbicidal active compound combinations which comprise substituted thien-3-ylsulphonylamino(thio)carbonyltriazolin(ethi)ones and at least one compound which improves crop plant compatibility and which can be used with particularly good results for the selective control of weeds in various crops of useful plants.

Substituted thien-3-ylsulphonylamino(thio)carbonyltriazoline(ethi)ones are already known as effective herbicides (cf. WO-A-01/05788). However, the activity of these compounds and/or their compatibility with crop plants are not entirely satisfactory under all conditions.

Surprisingly, it has now been found that certain substituted thien-3-ylsulphonylamino-(thio)carbonyltriazolin(ethi)ones, when used together with the crop-plant-compatibility-improving compounds (safeners/antidotes) described below, prevent damage to crop plants extremely well and can be used particularly advantageously as broad-spectrum combination preparations for the selective control of weeds in crops of useful plants, such as, for example, in cereals and maize.

The invention provides selective herbicidal compositions, characterized by an effective amount of an active compound combination comprising

(a) substituted thien-3-ylsulphonylamino(thio)carbonyltriazolin(ethi)ones of the formula (I)

in which

-   -   Q¹ represents O (oxygen) or S (sulphur),     -   Q² represents O (oxygen) or S (sulphur),     -   R¹ represents optionally cyano-, halogen- or C_(1-C)         ₄-alkoxy-substituted alkyl having 1 to 6 carbon atoms,         represents in each case optionally cyano- or halogen-substituted         alkenyl or alkynyl having in each case 2 to 6 carbon atoms,         represents in each case optionally cyano-, halogen- or         C₁-C₄-alkyl-substituted cycloalkyl or cycloalkylalkyl having in         each case 3 to 6 carbon atoms in the cycloalkyl group and, if         appropriate, 1 to 4 carbon atoms in the alkyl moiety, represents         in each case optionally nitro-, cyano-, halogen-, C₁-C₄-alkyl-         or C₁-C₄-alkoxy-substituted aryl or arylalkyl having in each         case 6 or 10 carbon atoms in the aryl group and, if appropriate,         1 to 4 carbon atoms in the alkyl moiety, or represents in each         case optionally nitro-, cyano-, halogen-, C₁-C₄-alkyl- or         C₁-C₄-alkoxy-substituted heterocyclyl or heterocyclylalkyl         having in each case up to 6 carbon atoms and additionally 1 to 4         nitrogen atoms and/or 1 or 2 oxygen or sulphur atoms in the         heterocyclyl group and, if appropriate, 1 to 4 carbon atoms in         the alkyl moiety,     -   R² represents hydrogen, cyano, nitro, halogen, represents in         each case optionally cyano-, halogen- or         C₁-C₄-alkoxy-substituted alkyl, alkoxy, alkoxycarbonyl,         alkylthio. alkylsulphinyl or alkylsulphonyl having in each case         1 to 6 carbon atoms in the alkyl group, or represents in each         case optionally cyano- or halogen-substituted alkenyl, alkynyl,         alkenyloxy or alkynyloxy having in each case 2 to 6 carbon atoms         in the alkenyl or alkynyl group,     -   R³ represents hydrogen, hydroxyl, mercapto, amino, cyano,         fluorine, chlorine, bromine, iodine, represents optionally         fluorine-, chlorine-, bromine-, cyano-, C₁-C₄-alkoxy-,         C₁-C₄-alkyl-carbonyl- or C₁-C₄-alkoxy-carbonyl-substituted alkyl         having 1 to 6 carbon atoms, represents in each case optionally         fluorine-, chlorine- and/or bromine-substituted alkenyl or         alkynyl having in each case 2 to 6 carbon atoms, represents in         each case optionally fluorine-, chlorine-, cyano-, C₁-C₄-alkoxy-         or C₁-C₄-alkoxy-carbonyl-substituted alkoxy, alkylthio,         alkylamino or alkylcarbonylamino having in each case 1 to 6         carbon atoms in the alkyl group, represents alkenyloxy,         alkynyloxy, alkenylthio, alkynylthio, alkenylamino or         alkynylamino having in each case 3 to 6 carbon atoms in the         alkenyl or alkynyl group, represents dialkylamino having in each         case 1 to 4 carbon atoms in the alkyl groups, represents in each         case optionally methyl- and/or ethyl-substituted aziridino,         pyrrolidino, piperidino and/or morpholino, represents in each         case optionally fluorine-, chlorine-, bromine-, cyano- and/or         C₁-C₄-alkyl-substituted cycloalkyl, cycloalkenyl, cycloalkyloxy,         cycloalkylthio, cycloalkylamino, cycloalkylalkyl,         cycloalkylalkoxy, cycloalkylalkylthio or cycloalkylalkylamino         having in each case 3 to 6 carbon atoms in the cycloalkyl or         cycloalkenyl group and, if appropriate, 1 to 4 carbon atoms in         the alkyl moiety, or represents in each case optionally         fluorine-, chlorine-, bromine-, cyano-, nitro-, C₁-C₄-alkyl-,         trifluoromethyl-, C₁-C₄-alkoxy- and/or         C₁-C₄-alkoxy-carbonyl-substituted aryl, arylalkyl, aryloxy,         arylalkoxy, arylthio, arylalkylthio, arylamino or arylalkylamino         having in each case 6 or 10 carbon atoms in the aryl group and,         if appropriate, 1 to 4 carbon atoms in the alkyl moiety,     -   R⁴ represents hydrogen, hydroxyl, amino, cyano, represents         C₂-C₁₀-alkylidene-amino, represents optionally fluorine-,         chlorine-, bromine-, cyano-, C₁-C₄-alkoxy-,         C₁-C₄-alkyl-carbonyl- or C₁-C₄-alkoxy-carbonyl-substituted alkyl         having 1 to 6 carbon atoms, represents in each case optionally         fluorine-, chlorine- and/or bromine-substituted alkenyl or         alkynyl having in each case 2 to 6 carbon atoms, represents in         each case optionally fluorine-, chlorine-, bromine-, cyano-,         C₁-C₄-alkoxy- or C₁-C₄-alkoxy-carbonyl-substituted alkoxy,         alkylamino or alkyl-carbonylamino having in each case 1 to 6         carbon atoms in the alkyl group, represents alkenyloxy having 3         to 6 carbon atoms, represents dialkylamino having in each case 1         to 4 carbon atoms in the alkyl groups, represents in each case         optionally fluorine-, chlorine-, bromine-, cyano- and/or         C₁-C₄-alkyl-substituted cycloalkyl, cycloalkylamino or         cycloalkylalkyl having in each case 3 to 6 carbon atoms in the         alkyl group and, if appropriate, 1 to 4 carbon atoms in the         alkyl moiety, or represents in each case optionally fluorine-,         chlorine-, bromine-, cyano- nitro-, C₁-C₄-alkyl-,         trifluoromethyl- and/or C₁-C₄-alkoxy-substituted aryl or         arylalkyl having in each case 6 or 10 carbon atoms in the aryl         group and, if appropriate, 1 to 4 carbon atoms in the alkyl         moiety, or     -   R³ and R⁴ together represent optionally branched alkanediyl         having 3 to 6 carbon atoms,     -   and salts of the compounds of the formula (I)     -   (“active compounds of group 1”)         and

(b) at least one compound which improves crop plant compatibility, from the group of compounds below:

-   -   4-dichloroacetyl-1-oxa-4-aza-spiro[4.5]-decane (AD-67,         MON-4660),         1-dichloro-acetyl-hexahydro-3,3,8a-trimethylpyrrolo[1,2-a]-pyrimidin-6(2H)-one         (dicyclonon, BAS-145138),         4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine         (benoxacor), 1-methyl-hexyl 5-chloro-quinolin-8-oxy-acetate         (cloquintocet-mexyl—cf. also related compounds in EP-A-86750,         EP-A-94349, EP-A-191736, EP-A-492366),         3-(2-chloro-benzyl)-1-(1-methyl-1-phenyl-ethyl)-urea         (cumyluron), α-(cyanomethoximino)-phenylacetonitrile         (cyometrinil), 2,4-dichloro-phenoxyacetic acid (2,4-D),         4-(2,4-dichloro-phenoxy)-butyric acid (2,4-DB),         1-(1-methyl-1-phenyl-ethyl)-3-(4-methyl-phenyl)-urea (daimuron,         dymron), 3,6-dichloro-2-methoxy-benzoic acid (dicamba),         S-1-methyl-1-phenyl-ethyl piperidine-1-thiocarboxylate         (dimepiperate),         2,2-dichloro-N-(2-oxo-2-(2-propenylamino)-ethyl)-N-(2-propenyl)-acetamide         (DKA-24), 2,2-dichloro-N,N-di-2-propenyl-acetamide (dichlormid),         4,6-dichloro-2-phenyl-pyrimidine (fenclorim), ethyl         1-(2,4-dichloro-phenyl)-5-trichloro-methyl-1H-1,2,4-triazole-3-carboxylate         (fenchlorazole-ethyl—cf. also related compounds in EP-A-174562         and EP-A-346620), phenyl-methyl         2-chloro-4-trifluoromethyl-thiazole-5-carboxylate (flurazole),         4-chloro-N-(1,3-dioxolan-2-yl-methoxy)-α-trifluoro-acetophenone         oxime (fluxofenim),         3-dichloroacetyl-5-(2-furanyl)-2,2-dimethyl-oxazolidine         (furilazole, MON-13900), ethyl         4,5-dihydro-5,5-diphenyl-3-isoxazolecarboxylate         (isoxadifen-ethyl—cf. also related compounds in WO-A-95/07897),         1-(ethoxycarbonyl)-ethyl-3,6-dichloro-2-methoxybenzoate         (lactidichlor), (4-chloro-o-tolyloxy)-acetic acid (MCPA),         2-(4-chloro-o-tolyloxy)-propionic acid (mecoprop), diethyl         1-(2,4-dichloro-phenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3,5-dicarboxylate         (mefenpyr-diethyl—cf. also related compounds in WO-A-91/07874),         2-dichloromethyl-2-methyl-1,3-dioxolane (MG-191),         2-propenyl-1-oxa-4-azaspiro[4.5]decane 4-carbodithioate         (MG-838), 1,8-naphthalic anhydride,         α-(1,3-dioxolan-2-yl-methoximino)-phenylacetonitrile         (oxabetrinil),         2,2-dichloro-N-(1,3-dioxolan-2-yl-methyl)-N-(2-propenyl)-acetamide         (PPG-1292), 3-dichloroacetyl-2,2-dimethyl-oxazolidine (R-28725),         3-dichloroacetyl-2,2,5-trimethyl-oxazolidine (R-29148),         4-(4-chloro-o-tolyl)-butyric acid, 4-(4-chloro-phenoxy)-butyric         acid, diphenylmethoxyacetic acid, methyl diphenylmethoxyacetate         (MON-7400, cf. U.S. Pat. No. 4,964,893), ethyl         diphenylmethoxyacetate, methyl         1-(2-chloro-phenyl)-5-phenyl-1H-pyrazole-3-carboxylate, ethyl         1-(2,4-dichloro-phenyl)-5-methyl-1H-pyrazole-3-carboxylate,         ethyl         1-(2,4-dichloro-phenyl)-5-isopropyl-1H-pyrazole-3-carboxylate,         ethyl         1-(2,4-dichloro-phenyl)-5-(1,1-dimethyl-ethyl)-1H-pyrazole-3-carboxylate,         ethyl 1-(2,4-dichloro-phenyl)-5-phenyl-1H-pyrazole-3-carboxylate         (cf. also related compounds in EP-A-269806 and EP-A-333131),         ethyl 5-(2,4-dichloro-benzyl)-2-isoxazoline-3-carboxylate, ethyl         5-phenyl-2-isoxazoline-3-carboxylate, ethyl         5-(4-fluoro-phenyl)-5-phenyl-2-isoxazoline-3-carboxylate (cf.         also related compounds in WO-A-91/08202), 1,3-dimethyl-but-1-yl         5-chloro-quinolin-8-oxy-acetate, 4-allyloxy-butyl         5-chloro-quinolin-8-oxy-acetate, 1-allyloxy-prop-2-yl         5-chloro-quinolin-8-oxy-acetate, methyl         5-chloro-quinolin-8-oxy-acetate, ethyl         5-chloro-quinolin-8-oxy-acetate, allyl         5-chloro-quinolin-8-oxy-acetate, 2-oxo-prop-1-yl         5-chloro-quinolin-8-oxy-acetate, diethyl         5-chloro-quinolin-8-oxy-malonate, diallyl         5-chloro-quinolin-8-oxy-malonate, diethyl         5-chloro-quinolin-8-oxy-malonate (cf. also related compounds in         EP-A-582198), 4-carboxy-chroman-4-yl-acetic acid (AC-304415, cf.         EP-A-613618), 4-chloro-phenoxyacetic acid,         3,3′-dimethyl-4-methoxy-benzophenone,         1-bromo-4-chloromethylsulphonyl-benzene,         1-[4-(N-2-methoxybenzoylsulphamoyl)-phenyl]-3-methyl-urea (alias         N-(2-methoxy-benzoyl)-4-[(methylamino-carbonyl)-amino]-benzenesulphonamide),         1-[4-(N-2-methoxybenzoylsulphamoyl)-phenyl]-3,3-dimethyl-urea,         1-[4-(N-4,5-dimethylbenzoylsulphamoyl)-phenyl]-3-methyl-urea,         1-[4-(N-naphthylsulphamoyl)-phenyl]-3,3-dimethyl-urea,         N-(2-methoxy-5-methyl-benzoyl)-4-(cyclopropyl-aminocarbonyl)-benzenesulphonamide,         and/or the following compounds         of the formula (IIa)         or the formula (IIb)         or the formula (IIc)         where     -   n represents a number between 0 and 5,     -   A¹ represents one of the divalent heterocyclic groupings shown         below,     -   A² represents optionally C₁-C₄-alkyl- and/or         C₁-C₄-alkoxy-carbonyl-substituted alkanediyl having 1 or 2         carbon atoms,     -   R⁵ represents hydroxyl, mercapto, amino, C₁-C₆-alkoxy,         C₁-C₆-alkylthio, C₁-C₆-alkylamino or di-(C₁-C₄-alkyl)-amino,     -   R⁶ represents hydroxyl, mercapto, amino, in each case optionally         C₁-C₄-alkyl, C₁-C₄-alkoxy or C₂-C₄-alkenoxy-substituted         C₁-C₆-alkoxy, C₂-C₆-alkenoxy, C₁-C₆-alkylthio, C₁-C₆-alkylamino         or di-(C₁-C₄-alkyl)-amino,     -   R⁷ represents in each case optionally fluorine-, chlorine-         and/or bromine-substituted C₁-C₄-alkyl,     -   R⁸ represents hydrogen, in each case optionally fluorine-,         chlorine- and/or bromine-substituted C₁-C₆-alkyl, C₂-C₆-alkenyl         or C₂-C₆-alkynyl, C₁-C₄-alkoxy-C₁-C₄-alkyl,         dioxolanyl-C₁-C₄-alkyl, furyl, furyl-C₁-C₄-alkyl, thienyl,         thiazolyl, piperidinyl, or optionally fluorine-, chlorine-         and/or bromine- or C₁-C₄-alkyl-substituted phenyl,     -   R⁹ represents hydrogen, in each case optionally fluorine-,         chlorine- and/or bromine-substituted C₁-C₆-alkyl, C₂-C₆-alkenyl         or C₂-C₆-alkynyl, C₁-C₄-alkoxy-C₁-C₄-alkyl,         dioxolanyl-C₁-C₄-alkyl, furyl, furyl-C₁-C₄-alkyl, thienyl,         thiazolyl, piperidinyl, or optionally fluorine-, chlorine-         and/or bromine- or C₁-C₄-alkyl-substituted phenyl, or together         with R⁸ represents C₃-C₆-alkanediyl or C₂-C₅-oxaalkanediyl, each         of which is optionally substituted by C₁-C₄-alkyl, phenyl,         furyl, a fused-on benzene ring or by two substituents which         together with the C atom to which they are attached form a 5- or         6-membered carbocycle,     -   R¹⁰ represents hydrogen, cyano, halogen, or represents in each         case optionally fluorine, chlorine- and/or bromine-substituted         C₁-C₄-alkyl, C₃-C₆-cycloalkyl or phenyl,     -   R¹¹ represents hydrogen, optionally hydroxyl-, cyano-, halogen-         or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl, C₃-C₆-cycloalkyl or         tri-(C₁-C₄-alkyl)-silyl,     -   R¹² represents hydrogen, cyano, halogen, or represents in each         case optionally fluorine-, chlorine- and/or bromine-substituted         C₁-C₄-alkyl, C₃-C₆-cycloalkyl or phenyl,     -   X¹ represents nitro, cyano, halogen, C₁-C₄-alkyl,         C₁-C₄-haloalkyl, C₁-C₄-alkoxy or C₁-C₄-haloalkoxy,     -   X² represents hydrogen, cyano, nitro, halogen, C₁-C₄-alkyl,         C₁-C₄-haloalkyl, C₁-C₄-alkoxy or C₁-C₄-haloalkoxy,     -   X³ represents hydrogen, cyano, nitro, halogen, C₁-C₄-alkyl,         C₁-C₄-haloalkyl, C₁-C₄-alkoxy or C₁-C₄-haloalkoxy,         where X¹ is preferably found at the (2) and (4) positions, X² is         preferably found at the (5) position and X³ is found at the (2)         position,         and/or the following compounds         of the formula (IId)         or the formula (IIe)         where     -   n again represents a number between 0 and 5,     -   R¹³ represents hydrogen or C₁-C₄-alkyl,     -   R¹⁴ represents hydrogen or C₁-C₄-alkyl,     -   R¹⁵ represents hydrogen, in each case optionally cyano-,         halogen- or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl, C₁-C₆-alkoxy,         C₁-C₆-alkylthio, C₁-C₆-alkylamino or di-(C₁-C₄-alkyl)-amino, or         in each case optionally cyano-, halogen- or         C₁-C₄-alkyl-substituted C₃-C₆-cycloalkyl, C₃-C₆-cycloalkyloxy,         C₃-C₆-cycloalkylthio or C₃-C₆-cycloalkylamino,     -   R¹⁶ represents hydrogen, optionally cyano-, hydroxyl-, halogen-         or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl, in each case optionally         cyano- or halogen-substituted C₃-C₆-alkenyl or C₃-C₆-alkynyl, or         optionally cyano-, halogen- or C₁-C₄-alkyl-substituted         C₃-C₆-cycloalkyl,     -   R¹⁷ represents hydrogen, optionally cyano-, hydroxyl-, halogen-         or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl, in each case optionally         cyano- or halogen-substituted C₃-C₆-alkenyl or C₃-C₆-alkynyl,         optionally cyano-, halogen- or C₁-C₄-alkyl-substituted         C₃-C₆-cycloalkyl, or optionally nitro-, cyano-, halogen-,         C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy- or         C₁-C₄-halogenoalkoxy-substituted phenyl, or together with R¹⁶         represents in each case optionally C₁-C₄-alkyl-substituted         C₂-C₆-alkanediyl or C₂-C₅-oxaalkanediyl.     -   X⁴ represents nitro, cyano, carboxyl, carbamoyl, formyl,         sulphamoyl, hydroxyl, amino, halogen, C₁-C₄-alkyl,         C₁-C₄-haloalkyl, C₁-C₄-alkoxy or C₁-C₄-haloalkoxy, and     -   X⁵ represents nitro, cyano, carboxyl, carbamoyl, formyl,         sulphamoyl, hydroxyl, amino, halogen, C₁-C₄-alkyl,         C₁-C₄-haloalkyl, C₁-C₄-alkoxy or C₁-C₄-haloalkoxy,         where X⁴ is preferably located in position (2) and/or (5)     -   (“active compounds of group 2”).

In the definitions, the hydrocarbon chains, such as in alkyl or alkanediyl, are in each case straight-chain or branched—including in combination with hetero atoms, such as in alkoxy.

Preferred meanings of the groups listed above in connection with the formula (I) are defined below.

-   -   Q¹ preferably represents O (oxygen) or S (sulphur).     -   Q² preferably represents O (oxygen) or S (sulphur).     -   R¹ preferably represents in each case optionally cyano-,         fluorine-, chlorine-, methoxy- or ethoxy-substituted methyl,         ethyl, n- or i-propyl, n-, i-, s- or t-butyl, represents in each         case optionally cyano-, fluorine- or chlorine-substituted         propenyl, butenyl, propynyl or butynyl, represents in each case         optionally cyano-, fluorine-, chlorine-, methyl- or         ethyl-substituted cyclopropyl, cyclobutyl, cyclopentyl,         cyclohexyl, cyclopropylmethyl, cyclobutylmethyl,         cyclopentylmethyl or cyclohexylmethyl, represents in each case         optionally cyano-, fluorine-, chlorine-, bromine-, methyl-,         ethyl-, n- or i-propyl-, trifluoromethyl-, methoxy-, ethoxy-, n-         or i-propoxy-, difluoromethoxy- or trifluoromethoxy-substituted         phenyl, phenylmethyl or phenylethyl, or represents in each case         optionally cyano-, fluorine-, chlorine-, bromine-, methyl-,         ethyl-, n- or i-propyl-, methoxy-, ethoxy-, n- or         i-propoxy-substituted heterocyclyl or heterocyclylmethyl, where         the heterocyclyl group is in each case selected from the group         consisting of oxetanyl, thietanyl, furyl, tetrahydrofuryl,         thienyl, tetrahydrothienyl.     -   R² represents hydrogen, cyano, fluorine, chlorine, bromine,         represents in each case optionally cyano-, fluorine-, chlorine-,         methoxy- or ethoxy-substituted methyl, ethyl, n- or i-propyl,         n-, i-, s- or t-butyl, methoxy, ethoxy, n- or i-propoxy,         methoxycarbonyl, ethoxycarbonyl, n- or i-propoxycarbonyl,         methylthio, ethylthio, n- or i-propylthio, methylsulphinyl,         ethylsulphinyl, methylsulphonyl or ethylsulphonyl, or represents         in each case optionally cyano-, fluorine- or         chlorine-substituted propenyl, butenyl, propynyl, butynyl,         propenyloxy, butenyloxy, propynyloxy or butynyloxy.     -   R³ represents hydrogen, hydroxyl, mercapto, amino, cyano,         fluorine, chlorine, bromine, represents in each case optionally         fluorine-, chlorine-, cyano-, methoxy-, ethoxy-, n- or         i-propoxy-, acetyl-, propionyl-, n- or i-butyroyl,         methoxycarbonyl-, ethoxycarbonyl-, n- or         i-propoxycarbonyl-substituted methyl, ethyl, n- or i-propyl, n-,         i-, s- or t-butyl, represents in each case optionally fluorine-,         chlorine- and/or bromine-substituted ethenyl, propenyl, butenyl,         ethynyl, propynyl or butynyl, represents in each case optionally         fluorine-, chlorine-, cyano-, methoxy-, ethoxy-, n- or         i-propoxy-, methoxycarbonyl-, ethoxycarbonyl-, n- or         i-propoxycarbonyl-substituted methoxy, ethoxy, n- or i-propoxy,         n-, i-, s- or t-butoxy, methylthio, ethylthio, n- or         i-propylthio, n-, i-, s- or t-butylthio, methylamino,         ethylamino, n- or i-propylamino, n-, i-, s- or t-butylamino,         acetylamino or propionylamino, represents propenyloxy,         butenyloxy, ethynyloxy, propynyloxy, butynyloxy, propenylthio,         butenylthio, propynylthio, butynylthio, propenylamino,         butenylamino, propynylamino or butynylamino, represents         dimethylamino, diethylamino or dipropylamino, represents in each         case optionally fluorine-, chlorine-, methyl-and/or         ethyl-substituted cyclopropyl, cyclobutyl, cyclopentyl,         cyclohexyl, cyclopentenyl, cyclohexenyl, cyclopropyloxy,         cyclobutyloxy, cyclopentyloxy, cyclohexyloxy, cyclopropylthio,         cyclobutylthio, cyclopentylthio, cyclohexylthio,         cyclopropylamino, cyclobutylamino, cyclopentylamino,         cyclohexylamino, cyclopropylmethyl, cyclobutylmethyl,         cyclopentylmethyl, cyclohexylmethyl, cyclopropylmethoxy,         cyclobutylmethoxy, cyclopentylmethoxy, cyclohexylmethoxy,         cyclopropylmethylthio, cyclobutylmethylthio,         cyclopentylmethylthio, cyclobexylmethylthio,         cyclopropylmethylamino, cyclobutylmethylamino,         cyclopentylmethylamino or cyclohexylmethylamino, or represents         in each case optionally fluorine-, chlorine-, bromine-, methyl-,         trifluoromethyl-, methoxy- or methoxycarbonyl-substituted         phenyl, benzyl, phenoxy, benzyloxy, phenylthio, benzylthio,         phenylamino or benzylamino.     -   R⁴ preferably represents hydrogen, hydroxyl, amino, represents         in each case optionally fluorine-, chlorine-, cyano-, methoxy-         or ethoxy-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-         or t-butyl, represents in each case optionally fluorine,         chlorine, and/or bromine-substituted ethenyl, propenyl, butenyl,         propynyl or butynyl, represents in each case optionally         fluorine-, chlorine-, cyano-, methoxy- or ethoxy-substituted         methoxy, ethoxy, n- or i-propoxy, n-, i-, s- or t-butoxy,         methylamino, ethylamino, n- or i-propylamino, n-, i-, s- or         t-butylamino, represents propenyloxy or butenyloxy, represents         dimethylamino or diethylamino, represents in each case         optionally fluorine-, chlorine-, methyl- and/or         ethyl-substituted cyclopropyl, cyclobutyl, cyclopentyl,         cyclohexyl, cyclopropylamino, cyclobutylamino, cyclopentylamino,         cyclohexylamino, cyclopropylmethyl, cyclobutylmethyl,         cyclopentylmethyl or cyclohexylmethyl, or represents in each         case optionally fluorine-, chlorine-, methyl-, trifluoromethyl-         and/or methoxy-substituted phenyl or benzyl.     -   R³ and R⁴ together preferably represent trimethylene         (propane-1,3-diyl), tetramethylene (butane-1,4-diyl) or         pentamethylene (pentane-1,5-diyl).     -   Q¹ particularly preferably represents O (oxygen).     -   Q² particularly preferably represents O (oxygen).     -   R¹ particularly preferably represents in each case optionally         fluorine-, chlorine-, methoxy- or ethoxy-substituted methyl,         ethyl, n- or i-propyl.     -   R² particularly preferably represents fluorine, chlorine,         bromine or represents in each case optionally fluorine-,         chlorine-, methoxy- or ethoxy-substituted methyl, ethyl, n- or         i-propyl.     -   R³ particularly preferably represents hydrogen, chlorine,         bromine, represents in each case optionally fluorine-,         chlorine-, methoxy-, ethoxy-, n- or i-propoxy-substituted         methyl, ethyl, n- or i-propyl, represents in each case         optionally fluorine- or chlorine-substituted ethenyl, propenyl,         butenyl, propynyl or butynyl, represents in each case optionally         fluorine-, chlorine-, methoxy-, ethoxy-, n- or         i-propoxy-substituted methoxy, ethoxy, n- or i-propoxy,         methylthio, ethylthio, n- or i-propylthio, methylamino,         ethylamino, n- or i-propylamino, represents propenyloxy,         propynyloxy, propenylthio, propynylthio, propenylamino or         propynylamino, represents dimethylamino or diethylamino,         represents in each case optionally fluorine-, chlorine- or         methyl-substituted cyclopropyl, cyclopropyloxy,         cyclopropylmethyl or cyclopropylmethoxy.     -   R⁴ particularly preferably represents in each case optionally         fluorine-, chlorine-, methoxy- or ethoxy-substituted methyl,         ethyl, n- or i-propyl, represents in each case optionally         fluorine- or chlorine-substituted ethenyl, propenyl or propynyl,         represents in each case optionally fluorine-, chlorine-,         methoxy- or ethoxy-substituted methoxy, ethoxy, n- or i-propoxy,         represents methylamino, or represents cyclopropyl.

Most preferably, R¹ and R² represent methyl, ethyl, n- or i-propyl.

Preferred active compound components of group 1 are in particular also the sodium, potassium, magnesium, calcium, ammonium, C₁-C₄-alkylammonium-, di-(C₁-C₄-alkyl)ammonium-, tri-(C₁-C₄-alkyl)ammonium, tetra-(C₁-C₄-alkyl)ammonium, tri-(C₁-C₄-alkyl)sulphonium-, C₅- or C₆-cycloalkylammonium and di-(C₁-C₂-alkyl)-benzylammonium salts of compounds of the formula (I) in which Q¹, Q², R¹, R², R³ and R⁴ have the meanings given above as being preferred.

Examples of compounds of the formula (I) which are very particularly preferred as active compound components according to the invention are listed in Table 1 below. TABLE 1 (I)

Examples of compounds of the formula (I) Melting Ex. No. Q¹ Q² R¹ R² R³ R⁴ point (° C.) I-1  O O CH₃ CH₃ OC₂H₅ CH₃ 163 I-2  O O CH₃ CH₃ OCH₃ CH₃ 201 I-3  O O CH₃ CH₃ OC₃H₇-n CH₃ 156 I-4  O O CH₃ CH₃ OC₃H₇-i CH₃ 150 I-5  O O CH₃ CH₃ OCH₃

218 I-6  O O CH₃ CH₃ OC₂H₅

170 I-7  O O CH₃ CH₃ OC₃H₇-n

156 I-8  O O CH₃ CH₃ OC₃H₃-i

188 I-9  O O CH₃ CH₃

200 I-10 O O CH₃ CH₃ CH₃ CH₃ 178 I-11 O O CH₃ CH₃ C₂H₅ CH₃ 161 I-12 O O CH₃ CH₃ SCH₃ CH₃ 183 I-13 O O C₂H₅ CH₃ OCH₃ CH₃ 176 I-14 O O CH₃ CH₃ CH₂OCH₃

185 I-15 O O C₂H₅ CH₃ OC₂H₅ CH₃ 172 I-16 O O C₂H₅ CH₃ OCH₃

173 I-17 O O CH₃ CH₃ C₂H₅ OC₂H₅ 183 I-18 O O CH₃ CH₃ C₂H₅

175

Very particular emphasis as active compound components according to the invention is also given to the sodium salts of the compounds from Table 1.

Preferred meanings of the groups listed above in connection with the compounds improving crop plant compatibility (“herbicide safeners”) of the formulae (Ia), (IIb), (IIc), (IId) and (IIe) are defined below.

-   -   n preferably represents the numbers 0, 1, 2, 3 or 4.     -   A² preferably represents in each case optionally methyl-,         ethyl-, methoxycarbonyl- or ethoxycarbonyl-substituted methylene         or ethylene.     -   R⁵ preferably represents hydroxyl, mercapto, amino, methoxy,         ethoxy, n- or i-propoxy, n-, i-, s- or t-butoxy, methylthio,         ethylthio, n- or i-propylthio, n-, i-, s- or t-butylthio,         methylamino, ethylamino, n- or i-propylamino, n-, i-, s- or         t-butylamino, dimethylamino or diethylamino.     -   R⁶ preferably represents hydroxyl, mercapto, amino, methoxy,         ethoxy, n- or i-propoxy, n-, i-, s- or t-butoxy, methylthio,         ethylthio, n- or i-propylthio, n-, i-, s- or t-butylthio,         methylamino, ethylamino, n- or i-propylamino, n-, i-, s- or         t-butylamino, dimethylamino or diethylamino.     -   R⁷ preferably represents in each case optionally fluorine-,         chlorine- and/or bromine-substituted methyl, ethyl, n- or         i-propyl.     -   R⁸ preferably represents hydrogen, in each case optionally         fluorine- and/or chlorine-substituted methyl, ethyl, n- or         i-propyl, n-, i-, s- or t-butyl, propenyl, butenyl, propynyl or         butynyl, methoxymethyl, ethoxymethyl, methoxyethyl, ethoxyethyl,         dioxolanylmethyl, furyl, furylmethyl, thienyl, thiazolyl,         piperidinyl, or optionally fluorine-, chlorine-, methyl-,         ethyl-, n- or i-propyl-, n-, i-, s- or t-butyl-substituted         phenyl.     -   R⁹ preferably represents hydrogen, in each case optionally         fluorine- and/or chlorine-substituted methyl, ethyl, n- or         i-propyl, n-, i-, s- or t-butyl, propenyl, butenyl, propynyl or         butynyl, methoxymethyl, ethoxymethyl, methoxyethyl, ethoxyethyl,         dioxolanylmethyl, furyl, furylmethyl, thienyl, thiazolyl,         piperidinyl, or optionally fluorine-, chlorine-, methyl-,         ethyl-, n- or i-propyl-, n-, 30 i-, s- or t-butyl-substituted         phenyl, or together with R⁸ represents one of the radicals         —CH₂—O—CH₂-CH₂— and —CH₂-CH₂—O—CH₂-CH₂—, which are optionally         substituted by methyl, ethyl, furyl, phenyl, a fused-on benzene         ring or by two substituents which together with the C atom to         which they are attached form a 5- or 6-membered carbocycle.     -   R¹⁰ preferably represents hydrogen, cyano, fluorine, chlorine,         bromine, or represents in each case optionally fluorine-,         chlorine- and/or bromine-substituted methyl, ethyl, n- or         i-propyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl or         phenyl.     -   R¹¹ preferably represents hydrogen, optionally hydroxyl-,         cyano-, fluorine-, chlorine-, methoxy-, ethoxy-, n- or         i-propoxy-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-         or t-butyl.     -   R¹² preferably represents hydrogen, cyano, fluorine, chlorine,         bromine, or represents in each case optionally fluorine-,         chlorine- and/or bromine-substituted methyl, ethyl, n- or         i-propyl, n-, i-, s- or t-butyl, cyclopropyl, cyclobutyl,         cyclopentyl, cyclohexyl or phenyl.     -   X¹ preferably represents nitro, cyano, fluorine, chlorine,         bromine, methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl,         difluoromethyl, dichloromethyl, trifluoromethyl,         trichloromethyl, chlorodifluoromethyl, fluorodichloromethyl,         methoxy, ethoxy, n- or i-propoxy, difluoromethoxy or         trifluoromethoxy.     -   X² preferably represents hydrogen, nitro, cyano, fluorine,         chlorine, bromine, methyl, ethyl, n- or i-propyl, n-, i-, s- or         t-butyl, difluoromethyl, dichloromethyl, trifluoromethyl,         trichloromethyl, chlorodifluoromethyl, fluorodichloromethyl,         methoxy, ethoxy, n- or i-propoxy, difluoromethoxy or         trifluoromethoxy.     -   X³ preferably represents hydrogen, nitro, cyano, fluorine,         chlorine, bromine, methyl, ethyl, n- or i-propyl, n-, i-, s- or         t-butyl, difluoromethyl, dichloromethyl, trifluoromethyl,         trichloromethyl, chlorodifluoromethyl, fluorodichloromethyl,         methoxy, ethoxy, n- or i-propoxy, difluoromethoxy or         trifluoromethoxy.     -   R¹³ preferably represents hydrogen, methyl, ethyl, n- or         i-propyl.     -   R¹⁴ preferably represents hydrogen, methyl, ethyl, n- or         i-propyl.     -   R¹⁵ preferably represents hydrogen, in each case optionally         cyano-, fluorine-, chlorine-, methoxy-, ethoxy-, n- or         i-propoxy-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-         or t-butyl, methoxy, ethoxy, n- or i-propoxy, n-, i-, s- or         t-butoxy, methylthio, ethylthio, n- or i-propylthio, n-, i-, s-         or t-butylthio, methylamino, ethylamino, n- or i-propylamino,         n-, i-, s- or t-butylamino, dimethylamino or diethylamino, or in         each- case optionally cyano-, fluorine-, chlorine-, bromine-,         methyl-, ethyl-, n- or i-propyl-substituted cyclopropyl,         cyclobutyl, cyclopentyl, cyclohexyl, cyclopropyloxy,         cyclobutyloxy, cyclopentyloxy, cyclohexyloxy, cyclopropylthio,         cyclobutylthio, cyclopentylthio, cyclohexylthio,         cyclopropylamino, cyclobutylamino, cyclopentylamino or         cyclohexylamino.     -   R¹⁶ preferably represents hydrogen, in each case optionally         cyano-, hydroxyl-, fluorine-, chlorine-, methoxy-, ethoxy-, n-         or i-propoxy-substituted methyl, ethyl, n- or i-propyl, n-, i-         or s-butyl, in each case optionally cyano-, fluorine-, chlorine-         or bromine-substituted propenyl, butenyl, propynyl or butynyl,         or in each case optionally cyano-, fluorine-, chlorine-,         bromine-, methyl-, ethyl-, n- or i-propyl-substituted         cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl.     -   R¹⁷ preferably represents hydrogen, represents in each case         optionally cyano-, hydroxyl-, fluorine-, chlorine-, methoxy-,         ethoxy-, n- or i-propoxy-substituted methyl, ethyl, n- or         i-propyl, n-, i- or s-butyl, in each case optionally cyano-,         fluorine-, chlorine- or bromine-substituted propenyl, butenyl,         propynyl or butynyl, in each case optionally cyano-, fluorine-,         chlorine-, bromine-, methyl-, ethyl-, n- or i-propyl-substituted         cyclopropyl, cyclobutyl, cyclopentyl or cyclohexyl, or         optionally nitro-, cyano-, fluorine-, chlorine-, bromine-,         methyl, ethyl-, n- or i-propyl-, n-, i-, s- or t-butyl-,         trifluoromethyl-, methoxy-, ethoxy-, n- or i-propoxy-,         difluoromethoxy- or trifluoromethoxy-substituted phenyl, or         together with R¹⁶ represents in each case optionally methyl- or         ethyl-substituted butane-1,4-diyl (trimethylene),         pentane-1,5-diyl, 1-oxa-butane-1,4-diyl or         3-oxa-pentane-1,5-diyl.     -   X⁴ preferably represents nitro, cyano, carboxyl, carbamoyl,         formyl, sulphamoyl, hydroxyl, amino, fluorine, chlorine,         bromine, methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl,         trifluoromethyl, methoxy, ethoxy, n- or i-propoxy,         difluoromethoxy or trifluoromethoxy.     -   X⁵ preferably represents nitro, cyano, carboxyl, carbamoyl,         formyl, sulphamoyl, hydroxyl, amino, fluorine, chlorine,         bromine, methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl,         trifluoromethyl, methoxy, ethoxy, n- or i-propoxy,         difluoromethoxy or trifluoromethoxy.

Examples of compounds of the formula (IIa) which are very particularly preferred as herbicide safeners according to the invention are listed in Table 2 below.

Table 2: Examples of the compounds of the formula (IIa) (IIa)

Example No. (positions) (X¹)_(n) A¹ R⁵ IIa-1 (2) Cl, (4) Cl

OCH₃ IIa-2 (2) Cl, (4) Cl

OCH₃ IIa-3 (2) Cl, (4) Cl

OC₂H₅ IIa-4 (2) Cl, (4) Cl

OC₂H₅ IIa-5 (2) Cl

OCH₃ IIa-6 (2) Cl, (4) Cl

OCH₃ IIa-7 (2) F

OCH₃ IIa-8 (2) F

OCH₃ IIa-9 (2) Cl, (4) Cl

OC₂H₅ IIa-10 (2) Cl, (4) CF₃

OCH₃ IIa-11 (2) Cl

OCH₃ IIa-12 —

OC₂H₅ IIa-13 (2) Cl, (4) Cl

OC₂H₅ IIa-14 (2) Cl, (4) Cl

OC₂H₅ IIa-15 (2) Cl, (4) Cl

OC₂H₅ IIa-16 (2) Cl, (4) Cl

OC₂H₅ IIa-17 (2) Cl, (4) Cl

OC₂H₅

Examples of compounds of the formula (IIb) which are very particularly preferred as herbicide safeners according to the invention are listed in Table 3 below. TABLE 3 (IIb)

Examples of compounds of the formula (IIb) Example No. (position) X² (position) X³ A² R⁶ IIb-1 (5) Cl — CH₂ OH IIb-2 (5) Cl — CH₂ OCH₂ IIb-3 (5) Cl — CH₂ OC₂H₅ IIb-4 (5) Cl — CH₂ OC₃H₇-n IIb-5 (5) Cl — CH₂ OC₃H₇-i IIb-6 (5) Cl — CH₂ OC₄H₉-n IIb-7 (5) Cl — CH₂ OCH(CH₃)C₅H₁₁-n IIb-8 (5) Cl (2) F CH₂ OH IIb-9 (5) Cl (2) Cl CH₂ OH IIb-10 (5) Cl — CH₂ OCH₂CH═CH₂ IIb-11 (5) Cl — CH₂ OC₄H₉-i IIb-12 (5) Cl — CH₂

IIb-13 (5) Cl —

OCH₂CH═CH₂ IIb-14 (5) Cl —

OC₂H₅

Examples of the compounds (IIc) which are very particularly preferred as herbicide safeners according to the invention are listed in Table 4 below. TABLE 4 (IIc)

Examples of the compounds of the formula (IIc) Example No. R⁷ N(R⁸R⁹) IIc-1 CHCl₂ N(CH₂CH═CH₂)₂ IIc-2 CHCl₂

IIc-3 CHCl₂

IIc-4 CHCl₂

IIc-5 CHCl₂

IIc-6 CHCl₂

IIc-7 CHCl₂

Examples of the compounds of the formula (IId) which are very particularly preferred as herbicide safeners according to the invention are listed in Table 5 below. TABLE 5 (IId)

Examples of the compounds of the formula (IId) Example (positions) (positions) No. R¹³ R¹⁴ R¹⁵ (X⁴)_(n) (X⁵)_(n) IId-1 H H CH₃ (2) OCH₃ — IId-2 H H C₂H₅ (2) OCH₃ — IId-3 H H C₃H₇-n (2) OCH₃ — IId-4 H H C₃H₇-i (2) OCH₃ — IId-5 H H

(2) OCH₃ — IId-6 H H CH₃ (2) OCH₃ (5) CH₃ — IId-7 H H C₂H₅ (2) OCH₃ (5) CH₃ — IId-8 H H C₃H₇-n (2) OCH₃ (5) CH₃ — IId-9 H H C₃H₇-i (2) OCH₃ (5) CH₃ — IId-10 H H

(2) OCH₃ (5) CH₃ — IId-11 H H OCH₃ (2) OCH₃ (5) CH₃ — IId-12 H H OC₂H₅ (2) OCH₃ (5) CH₃ — lId-13 H H OC₃H₇-i (2) OCH₃ (5) CH₃ — IId-14 H H SCH₃ (2) OCH₃ (5) CH₃ — IId-15 H H SC₂H₅ (2) OCH₃ (5) CH₃ — IId-16 H H SC₃H₇-i (2) OCH₃ (5) CH₃ — Ild-17 H H NHCH₃ (2) OCH₃ (5) CH₃ — lId-18 H H NHC₂H₅ (2) OCH₃ (5) CH₃ — IId-19 H H NHC₃H₇-i (2) OCH₃ (5) CH₃ — IId-20 H H

(2) OCH₃ (5) CH₃ — IId-21 H H NHCH₃ (2) OCH₃ — IId-22 H H NHC₃H₇-i (2) OCH₃ — IId-23 H H N(CH₃)₂ (2) OCH₃ — IId-24 H H N(CH₃)₂ (2) OCH₃ (5) CH₃ — IId-25 H H CH₂OCH₃ (2) OCH₃ — IId-26 H H CH₂OCH₃ (2) OCH₃ (5) CH₃ —

Examples of the compounds of the formula (IIe) which are very particularly preferred as herbicide safeners according to the invention are listed in Table 6 below. TABLE 6 (IIe)

Examples of the compounds of the formula (IIe) Example (positions) (positions) No. R¹³ R¹⁶ R¹⁷ (X⁴)_(n) (X⁵)_(n) IIe-1 H H CH₃ (2) OCH₃ — IIe-2 H H C₂H₅ (2) OCH₃ — IIe-3 H H C₃H₇-n (2) OCH₃ — IIe-4 H H C₃H₇-i (2) OCH₃ — IIe-5 H H

(2) OCH₃ — IIe-6 H CH₃ CH₃ (2) OCH₃ — IIe-7 H H CH₃ (2) OCH₃ — (5) CH₃ IIe-8 H H C₂H₅ (2) OCH₃ — (5) CH₃ IIe-9 H H C₃H₇-n (2) OCH₃ — (5) CH₃ IIe-10 H H C₃H₇-i (2) OCH₃ — (5) CH₃ IIe-11 H H

(2) OCH_(3 (5) CH) ₃ — IIe-12 H CH₃ CH₃ (2) OCH₃ — (5) CH₃ IIe-13 H H CH₂CH═CH₂ (2) OCH₃ — IIe-14 H H CH₂CH═CH₂ (2) OCH₃ — (5) CH₃ IIe-15 H H

(2) OCH₃ — IIe-16 H H

(2) OCH_(3 (5) CH) ₃ — Ile-17 H H

(2) OCH₃ — IIe-18 H H

(2) OCH_(3 (5) CH) ₃ — IIe-19 H H

(2) OCH₃ — IIe-20 H H

(2) OCH_(3 (5) CH) ₃ —

The compounds of the general formula (IIa) to be used as safeners according to the invention are known and/or can be prepared by processes known per se (cf. WO-A-91/07874, WO-A-95/07897).

The compounds of the general formula (IIb) to be used as safeners according to the invention are known and/or can be prepared by processes known per se (cf. EP-A-191736).

The compounds of the general formula (IIc) to be used as safeners according to the invention are known and/or can be prepared by processes known per se (cf. DE-A-22180974, DE-A-2350547).

The compounds of the general formula (IId) to be used as safeners according to the invention are known and/or can be prepared by processes known per se (cf. DE-A-19621522/U.S. Pat. No. 6,235,680/WO 97/45016).

The compounds of the general formula (IIe) to be used as safeners according to the invention are known and/or can be prepared by processes known per se (cf. WO-A-99/66795/U.S. Pat. No. 6,251,827).

Examples of the selectively herbicidal combinations according to the invention of in each case one active compound of the formula (I) and in each case one of the safeners defined above are listed in Table 7 below. TABLE 7 Examples of combinations according to the invention Active compound of the formula (I) Safener I-1 AD-67 I-1 cloquintocet-mexyl I-1 dichlormid I-1 fenchlorazole-ethyl I-1 isoxadifen-ethyl I-1 mefenpyr-diethyl I-1 MON-7400 I-1 flurazole I-1 furilazole I-1 fenclorim I-1 cumyluron I-1 daimuron/dymron I-1 dimepiperate I-1 IId-25 I-1 IIe-11 I-2 AD-67 I-2 cloquintocet-mexyl I-2 dichlormid I-2 fenchlorazole-ethyl I-2 isoxadifen-ethyl I-2 mefenpyr-diethyl I-2 MON-7400 I-2 flurazole I-2 furilazole I-2 fenclorim I-2 cumyluron I-2 daimuron/dymron I-2 dimepiperate I-2 IId-25 I-2 IIe-11 I-3 AD-67 I-3 cloquintocet-mexyl I-3 dichlormid I-3 fenchlorazole-ethyl I-3 isoxadifen-ethyl I-3 mefenpyr-diethyl I-3 MON-7400 I-3 flurazole I-3 furilazole I-3 fenclorim I-3 cumyluron I-3 daimuron/dymron I-3 dimepiperate I-3 IId-25 I-3 IIe-11 I-4 AD-67 I-4 cloquintocet-mexyl I-4 dichlormid I-4 fenchlorazole-ethyl I-4 isoxadifen-ethyl I-4 mefenpyr-diethyl I-4 MON-7400 I-4 flurazole I-4 furilazole I-4 fenclorim I-4 cumyluron I-4 daimuron/dymron I-4 dimepiperate I-4 IId-25 I-4 IIe-11 I-5 AD-67 I-5 cloquintocet-mexyl I-5 dichlormid I-5 fenchlorazole-ethyl I-5 isoxadifen-ethyl I-5 mefenpyr-diethyl I-5 MON-7400 I-5 flurazole I-5 furilazole I-5 fenclorim I-5 cumyluron I-5 daimuron/dymron I-5 dimepiperate I-5 IId-25 I-5 IIe-11 I-6 AD-67 I-6 cloquintocet-mexyl I-6 dichlormid I-6 fenchlorazole-ethyl I-6 isoxadifen-ethyl I-6 mefenpyr-diethyl I-6 MON-7400 I-6 flurazole I-6 furilazole I-6 fenclorim I-6 cumyluron I-6 daimuron/dymron I-6 dimepiperate I-6 IId-25 I-6 IIe-11 I-7 AD-67 I-7 cloquintocet-mexyl I-7 dichlormid I-7 fenchlorazole-ethyl I-7 isoxadifen-ethyl I-7 mefenpyr-diethyl I-7 MON-7400 I-7 flurazole I-7 furilazole I-7 fenclorim I-7 cumyluron I-7 daimuron/dymron I-7 dimepiperate I-7 IId-25 I-7 IIe-11 I-8 AD-67 I-8 cloquintocet-mexyl I-8 dichlormid I-8 fenchlorazole-ethyl I-8 isoxadifen-ethyl I-8 mefenpyr-diethyl I-8 MON-7400 I-8 flurazole I-8 furilazole I-8 fenclorim I-8 cumyluron I-8 daimuron/dymron I-8 dimepiperate I-8 IId-25 I-8 IIe-11 I-9 AD-67 I-9 cloquintocet-mexyl I-9 dichlormid I-9 fenchlorazole-ethyl I-9 isoxadifen-ethyl I-9 mefenpyr-diethyl I-9 MON-7400 I-9 flurazole I-9 furilazole I-9 fenclorim I-9 cumyluron I-9 daimuron/dymron I-9 dimepiperate I-9 IId-25 I-9 IIe-11 I-10 AD-67 I-10 Cloquintocet-mexyl I-10 dichlormid I-10 fenchlorazole-ethyl I-10 isoxadifen-ethyl I-10 mefenpyr-diethyl I-10 MON-7400 I-10 flurazole I-10 furilazole I-10 fenclorim I-10 cumyluron I-10 daimuron/dymron I-10 dimepiperate I-10 IId-25 I-10 IIe-11 I-11 AD-67 I-11 cloquintocet-mexyl I-11 dichlormid I-11 fenchlorazole-ethyl I-11 isoxadifen-ethyl I-11 mefenpyr-diethyl I-11 MON-7400 I-11 flurazole I-11 furilazole I-11 fenclorim I-11 cumyluron I-11 daimuron/dymron I-11 dimepiperate I-11 IId-25 I-11 IIe-11 I-12 AD-67 I-12 cloquintocet-mexyl I-12 dichlormid I-12 fenchlorazole-ethyl I-12 isoxadifen-ethyl I-12 mefenpyr-diethyl I-12 MON-7400 I-12 flurazole I-12 furilazole I-12 fenclorim I-12 cumyluron I-12 daimuron/dymron I-12 dimepiperate I-12 IId-25 I-12 IIe-11 I-13 mefenpyr-diethyl I-2, sodium salt IId-25 I-15 mefenpyr-diethyl I-16 mefenpyr-diethyl I-17 mefenpyr-diethyl I-14 mefenpyr-diethyl I-18 mefenpyr-diethyl

Surprisingly, it has now been found that the above-defined active compound combinations of substituted thien-3-ylsulphonylamino(thio)carbonyltriazolin(ethi)ones of the general formula (I) and/or their salts and safeners (antidotes) of group (2) listed above, whilst being tolerated very well by crop plants, have particularly high herbicidal activity and can be used in various crops, in particular in cereal (especially wheat) and maize, but also in soya beans, potatoes and rice, for the selective control of weeds.

Here, it has to be considered to be surprising that, from a large number of known safeners or antidotes which are capable of antagonizing the damaging effect of a herbicide on the crop plants, that are in particular the abovementioned compounds of group (2) which neutralize the damaging—effect of substituted thien-3-ylsulphonylamino(thio)carbonyltriazolin(ethi)ones on the crop plants virtually completely without negatively affecting the herbicidal activity with respect to the weeds.

Emphasis is given here to the particularly advantageous effect of the particularly and most preferred combination partners from group (2), in particular in respect of sparing cereal plants, such as, for example, wheat, barley and rye, but also maize and rice, as crop plants.

The active compound combinations according to the invention can be used, for example, in connection with the following plants:

-   -   Dicotyledonous weeds of the genera: Sinapis, Lepidium, Galium,         Stellaria, Matricaria, Anthemis, Galinsoga, Chenopodium, Urtica,         Senecio, Amaranthus, Portulaca, Xanthium, Convolvulus, Ipomoea,         Polygonum, Sesbania, Ambrosia, Cirsium, Carduus, Sonchus,         Solanum, Rorippa, Rotala, Lindernia, Lamium, Veronica, Abutilon,         Emex, Datura, Viola, Galeopsis, Papaver, Centaurea, Trifolium,         Ranunculus, Taraxacum.     -   Dicotyledonous crops of the genera: Gossypium, Glycine, Beta,         Daucus, Phaseolus, Pisum, Solanum, Linum, Ipomoea, Vicia,         Nicotiana, Lycopersicon, Arachis, Brassica, Lactuca, Cucumis,         Cuburbita, Helianthus.     -   Monocotyledonous weeds of the genera: Echinochloa, Setaria,         Panicum, Digitaria, Phleum, Poa, Festuca, Eleusine, Brachiaria,         Lolium, Bromus, Avena, Cyperus, Sorghum, Agropyron, Cynodon,         Monochoria, Fimbristylis, Sagittaria, Eleocharis, Scirpus,         Paspalum, Ischaemum, Sphenoclea, Dactyloctenium, Agrostis,         Alopecurus, Apera.     -   Monocotyledonous crops of the genera: Oryza, Zea, Triticum,         Hordeum, Avena, Secale, Sorghum, Panicum, Saccharum, Ananas,         Asparagus, Allium.

However, the use of the active compound combinations according to the invention is in no way restricted to these genera, but also extends in the same manner to other plants. According to the invention, crop plants are all plants and plant varieties including transgenic plants and plant varieties, where on transgenic plants and plant varieties it is also possible for synergistic effects to occur.

The advantageous effect of the crop plant compatibility of the active compound combinations according to the invention is particularly highly pronounced at certain concentration ratios. However, the weight ratios of the active compounds in the active compound concentrations can be varied within relatively wide ranges. In general, 0.001 to 1000 parts by weight, preferably 0.01 to 100 parts by weight, and particularly preferably 0.1 to 50 parts by weight and most preferably 1 to 25 parts by weight of one of the compounds which improve crop plant compatibility mentioned under group 2 above (antidotes/safeners) are present per part by weight of active compound of the formula (I) or its salts.

The active compounds or active compound combinations can be converted into the customary formulations, such as solutions, emulsions, wettable powders, suspensions, powders, dusting agents, pastes, soluble powders, granules, suspoemulsion concentrates, natural and synthetic materials impregnated with active compound, and very fine capsules in polymeric substances.

These formulations are produced in a known manner, for example by mixing the active compounds with extenders, that is liquid solvents and/or solid carriers, optionally with the use of surfactants, that is emulsifiers and/or dispersants and/or foam-formers.

If the extender used is water, it is also possible to use, for example, organic solvents as auxiliary solvents. Suitable liquid solvents are essentially: aromatics, such as xylene. toluene or alkylnaphthalenes, chlorinated aromatics and chlorinated aliphatic hydrocarbons, such as chlorobenzenes, chloroethylenes or methylene chloride, aliphatic hydrocarbons, such as cyclohexane or paraffins, for example petroleum fractions, mineral and vegetable oils, alcohols, such as butanol or glycol, and also their ethers and esters, ketones, such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, strongly polar solvents, such as dimethylformamide and dimethyl sulphoxide, and also water.

Suitable solid carriers are:

-   -   for example ammonium salts and ground natural minerals, such as         kaolins, clays, talc, chalk, quartz, attapulgite,         montmorillonite or diatomaceous earth, ground synthetic         minerals, such as finely divided silica, alumina and silicates,         suitable solid carriers for granules are: for example crushed         and fractionated natural rocks such as calcite, marble, pumice,         sepiolite and dolomite, and also synthetic granules of inorganic         and organic meals, and granules of organic material such as         sawdust, coconut shells, maize cobs and tobacco stalks; suitable         emulsifiers and/or foam-formers are: for example non-ionic and         anionic emulsifiers, such as polyoxyethylene fatty acid esters,         polyoxyethylene fatty alcohol ethers, for example alkylaryl         polyglycol ethers, alkylsulphonates, alkyl sulphates,         arylsulphonates and protein hydrolysates; suitable dispersants         are: for example lignosulphite waste liquors and         methylcellulose.

Tackifiers such as carboxymethylcellulose and natural and synthetic polymers in the form of powders, granules or latices, such as gum arabic, polyvinyl alcohol and polyvinyl acetate, and also natural phospholipids, such as cephalins and lecithins, and synthetic phospholipids, can be used in the formulations. Other possible additives are mineral and vegetable oils.

It is possible to use colorants such as inorganic pigments, for example iron oxide, titanium oxide and Prussian Blue, and organic dyestuffs, such as alizarin dyestuffs, azo dyestuffs and metal phthalocyanine dyestuffs, and trace nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.

The formulations generally comprise from 0.1 to 95 per cent by weight of active compounds including the safeners, preferably between 0.5 and 90%.

The active compound combinations according to the invention are generally used in the form of finished formulations. However, the active compounds contained in the active compound combinations can also be mixed in individual formulations when used, i.e. in the form of tank mixes.

The novel active compound combinations, as such or in their formulations, can furthermore be used as a mixture with other known herbicides, finished formulations or tank mixes again being possible. A mixture with other known active compounds, such as fungicides, insecticides, acaricides, nematicides, bird repellents, growth factors, plant nutrients and agents which improve soil structure, is also possible. For certain intended uses, in particular in the post-emergence method, it may furthermore be advantageous to include, as further additives in the formulations, mineral or vegetable oils which are tolerated by plants (for example the commercial preparation “Rako Binol”), or ammonium salts such as, for example, ammonium sulphate or ammonium thiocyanate.

The novel active compound combinations can be used as such, in the form of their formulations or the use forms prepared therefrom by further dilution, such as ready-to-use solutions, suspensions, emulsions, powders, pastes and granules. They are used in the customary manner, for example by washing, spraying, atomizing, dusting or scattering.

The amounts of the active compound combinations according to the invention applied can be varied within a certain range; they depend, inter alia. on the weather and on soil factors. In general, the application rates are between 0.001 and 5 kg per ha, preferably between 0.001 and 1 kg per ha, particularly preferably between 0.003 and 0.5 kg per ha.

The active compound combinations according to the invention can be applied before and after emergence of the plants, that is to say by the pre-emergence and post-emergence method.

USE EXAMPLES

The active compound or safener components are in each case dissolved in a few ml (generally 2-3 ml) of solvent (generally acetone or N,N-dimethyl-formamide), and the solutions are combined and then—if appropriate after addition of an emulsifier—diluted with water to the desired concentration. In general, an aqueous spray liquor was prepared using 0.1% of the additive Renex-36.

Example A

Post-Emergence Test

The test plants are grown under controlled conditions (temperature, light, atmospheric humidity) in a greenhouse. The test plants are sprayed when they have reached a height of 5-15 cm. The concentration of the spray liquor is chosen such that the particular amounts of active compound desired are applied in 500 l of water/ha.

After spraying, the pots with the test plants are kept in a greenhouse chamber under controlled conditions (temperature, light, atmospheric humidity) until the test has ended. About three weeks after the application, the degree of damage to the crop plants is rated in % damage in comparison to the development of the untreated control.

The figures denote:

-   -   0%=no damage (like untreated control)     -   100%=total destruction/damage

Active compounds, application rates, test plants and results are shown in the tables below, the terms being used in the tables being as defined below:

-   -   maize=maize cv. “Pioneer”

a.i.=active ingredient=active compound/safener TABLE A1 Post-emergence test/greenhouse Active compound Application rate Damage maize (+ safener) (g of a.i./ha) (in %) I-2 10 35 I-2 + AD-67 10 + 100 7 I-2 + cloquintocet-mexyl 10 + 100 1.5 I-2 + dichlormid 10 + 100 13.5 I-2 + fenchlorazole-ethyl 10 + 100 12 I-2 + isoxadifen-ethyl 10 + 100 4 I-2 + furilazole 10 + 100 2.5 I-2 + flurazole 10 + 100 4.5 I-2 + IIe-11 10 + 100 2 I-2 + MON-7400 10 + 100 1.5

Example A-2

Post-Emergence Test

Here, an aqueous spray liquor comprising 0.5% of the additive Renex-36 was prepared.

Ex. No. I-2, sodium salt=

Ex.-No. IId-25=

TABLE A-2-1 Post-emergence test/greenhouse Damage winter Active compound Application rate barley (+ safener) (g of a.i./ha) (in %) I-2, sodium salt 4 60 2 50 I-2, sodium salt +     4 + 100 50 Comp. No. IId-25     2 + 100 25    4 + 30 50    2 + 30 35

TABLE A-2-2 Post-emergence test/greenhouse Damage winter Application rate barley Safener (g of a.i./ha) (in %) Comp. No. IId-25 100 0 30 0

Example A-3

Post-Emergence Test

The compound I-2 was used as 10 WP. In each case, Marlipal® was added in an amount of 500 ml/ha.

Evaluation was carried out as early as 7 days after the application.

Maize 1=maize of the cultivar “Prinz”

Maize 2=maize of the cultivar “Pioneer”

Maize 3=maize of the cultivar “LIXIS” TABLE A-3-1 Post-emergence test/greenhouse Damage Application rate maize 1 Active compound (+ safener) (g of a.i./ha) (in %) I-2 15 20 8 10 I-2 + Comp. No. IId-25 15 + 100 5  8 + 100 0

TABLE A-3-2 Post-emergence test/greenhouse Damage Application rate maize 2 Active compound (+ safener) (g of a.i./ha) (in %) I-2 15 20 8 10 I-2 + Comp. No. IId-25 15 + 100 5  8 + 100 5

TABLE A-3-3 Post-emergence test/greenhouse Application rate Damage Active compound (+ safener) (g of a.i./ha) Maize 3 (in %) I-2 15 40 8 20 I-2 + Comp. No. IId-25 15 + 100 20  8 + 100 10 15 + 50  10  8 + 50  10

Example A-4

Post-Emergence Test

Mefenpyr-diethyl was used as 100 EC.

The compounds of Ex. Nos. I-2 and I-13 were used as 10 WP. TABLE A-4-1 Post-emergence test/greenhouse Application rate Damage winter Safener (g of a.i./ha) wheat (in %) mefenpyr-diethyl 50 0

TABLE A-4-2 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-2 30 60 15 40 I-2 + mefenpyr-diethyl 30 + 50 10 15 + 50 5

TABLE A-4-3 Post-emergence test/greenhouse Damage winter Application rate wheat Active compound (+ safener) (g of a.i./ha) (in %) I-13 125 30 60 20 I-13 + mefenpyr-diethyl 125 + 50 10  60 + 50 5

TABLE A-4-4 Post-emergence test/greenhouse Damage winter Application rate wheat Safener (g of a.i./ha) (in %) mefenpyr-diethyl 50 0

TABLE A-4-5 Post-emergence test/greenhouse Damage winter Application rate barley Active compound (+ safener) (g of a.i./ha) (in %) I-2 30 80 15 70 8 50 I-2 + mefenpyr-diethyl 30 + 50 70 15 + 50 40  8 + 50 30

TABLE A-4-6 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) barley (in %) I-13 125 80 60 70 30 50 I-13 + mefenpyr-diethyl 125 + 50 60  60 + 50 50  30 + 50 30

Example A-5

Post-Emergence Test

Mefenpyr-diethyl was used as 100 EC and the compound of Ex. No. I-2 was used as 10 WP. TABLE A-5-1 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-2 30 60 mefenpyr-diethyl 50 0 I-2 + mefenpyr-diethyl 30 + 50 5

TABLE A-5-2 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-13 125 50 mefenpyr-diethyl 50 0 I-13 + mefenpyr-diethyl 125 + 50 10

TABLE A-5-3 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-15 60 80 mefenpyr-diethyl 50 0 I-15 + mefenpyr-diethyl 60 + 50 40

TABLE A-5-4 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-16 60 25 mefenpyr-diethyl 50 0 I-16 + mefenpyr-diethyl 60 + 50 15

TABLE A-5-5 Post-emergence test/greenhouse Application rate Damage winter Safener (g of a.i./ha) wheat (in %) mefenpyr-diethyl 50 0

TABLE A-5-6 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-2 30 40 15 30 8 20 I-2 + mefenpyr-diethyl 30 + 50 20 15 + 50 10  8 + 50 10

TABLE A-5-7 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-17 30 70 15 50 8 40 I-17 + mefenpyr-diethyl 30 + 50 40 15 + 50 30  8 + 50 20

TABLE A-5-8 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-14 1 40 0.5 20 I-14 + mefenpyr-diethyl   1 + 50 30 0.5 + 50 10

TABLE A-5-9 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-18 2 50 1 30 I-18 + mefenpyr-diethyl 2 + 50 20 1 + 50 10

TABLE A-5-10 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) wheat (in %) I-15 30 70 15 40 8 30 I-15 + mefenpyr-diethyl 30 + 50 10 15 + 50 0  8 + 50 0

TABLE A-5-11 Post-emergence test/greenhouse Application rate Damage winter Safener (g of a.i./ha) barley (in %) mefenpyr-diethyl 50 0

TABLE A-5-12 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) barley (in %) I-2 30 80 15 70 8 60 I-2 + mefenpyr-diethyl 30 + 50 50 15 + 50 20  8 + 50 10

TABLE A-5-13 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) barley (in %) I-17 30 80 15 70 8 70 I-17 + mefenpyr-diethyl 30 + 50 70 15 + 50 60  8 + 50 20

TABLE A-5-14 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) barley (in %) I-14 0.5 30 0.25 10 I-14 + mefenpyr-diethyl  0.5 + 50 20 0.25 + 50 0

TABLE A-5-15 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) barley (in %) I-18 2 60 1 20 0.5 10 I-18 + mefenpyr-diethyl   2 + 50 20   1 + 50 10 0.5 + 50 0

TABLE A-5-19 Post-emergence test/greenhouse Application rate Damage winter Active compound (+ safener) (g of a.i./ha) barley (in %) I-15 30 80 15 70 8 60 I-15 + mefenpyr-diethyl 30 + 50 30 15 + 50 20  8 + 50 10 

1-9. (canceled)
 10. A composition comprising an active compound combination comprising (a) one or more compounds of formula (I)

or salts thereof, in which Q¹ represents O or S, Q² represents O or S, R¹ represents optionally cyano-, halogen-, or C₁-C₄-alkoxy-substituted alkyl having 1 to 6 carbon atoms; represents optionally cyano- or halogen-substituted alkenyl or alkynyl having in each case 2 to 6 carbon atoms; represents optionally cyano-, halogen-, or C₁-C₄-alkyl-substituted cycloalkyl or cycloalkylalkyl having in each case 3 to 6 carbon atoms in the cycloalkyl group and, where appropriate, 1 to 4 carbon atoms in any alkyl moiety; represents optionally nitro-, cyano-, halogen-, C₁-C₄-alkyl-, or C₁-C₄-alkoxy-substituted aryl or arylalkyl having in each case 6 or 10 carbon atoms in the aryl group and, where appropriate, 1 to 4 carbon atoms in any alkyl moiety; or represents optionally nitro-, cyano-, halogen-, C₁-C₄-alkyl-, or C₁-C₄-alkoxy-substituted heterocyclyl or heterocyclylalkyl having in each case up to 6 carbon atoms and additionally 1 to 4 nitrogen atoms and/or 1 or 2 oxygen or sulphur atoms in the heterocyclyl group and, where appropriate, 1 to 4 carbon atoms in any alkyl moiety, R² represents hydrogen, cyano, nitro, or halogen; represents optionally cyano-, halogen-, or C₁-C₄-alkoxy-substituted alkyl, alkoxy, alkoxycarbonyl, alkylthio, alkylsulphinyl, or alkylsulphonyl having in each case 1 to 6 carbon atoms in the alkyl group; or represents optionally cyano- or halogen-substituted alkenyl, alkynyl, alkenyloxy, or alkynyloxy having in each case 2 to 6 carbon atoms in the alkenyl or alkynyl group, R³ represents hydrogen, hydroxyl, mercapto, amino, cyano, fluorine, chlorine, bromine, or iodine, represents optionally fluorine-, chlorine-, bromine-, cyano-, C₁-C₄-alkoxy-, C₁-C₄-alkyl-carbonyl-, or C₁-C₄-alkoxy-carbonyl-substituted alkyl having 1 to 6 carbon atoms; represents optionally fluorine-, chlorine-, and/or bromine- substituted alkenyl or alkynyl having in each case 2 to 6 carbon atoms; represents optionally fluorine-, chlorine-, cyano-, C₁-C₄-alkoxy-, or C₁-C₄-alkoxy-carbonyl-substituted alkoxy, alkylthio, alkylamino, or alkylcarbonylamino having in each case 1 to 6 carbon atoms in the alkyl group; represents alkenyloxy, alkynyloxy, alkenylthio, alkynylthio, alkenylamino, or alkynylamino having in each case 3 to 6 carbon atoms in the alkenyl or alkynyl group; represents dialkylamino having in each case 1 to 4 carbon atoms in the alkyl groups; represents optionally methyl- and/or ethyl-substituted aziridino, pyrrolidino, piperidino, or morpholino; represents optionally fluorine-, chlorine-, bromine-, cyano-, and/or C₁-C₄-alkyl-substituted cycloalkyl, cycloalkenyl, cycloalkyloxy, cycloalkylthio, cycloalkylamino, cycloalkylalkyl, cycloalkylalkoxy, cycloalkylalkylthio, or cycloalkylalkylamino having in each case 3 to 6 carbon atoms in the cycloalkyl or cycloalkenyl group and, where appropriate, 1 to 4 carbon atoms in any alkyl moiety; or represents optionally fluorine-, chlorine-, bromine-, cyano-, nitro-, C₁-C₄-alkyl-, trifluoromethyl-, C₁-C₄-alkoxy- and/or C₁-C₄-alkoxy-carbonyl-substituted aryl, arylalkyl, aryloxy, arylalkoxy, arylthio, arylalkylthio, arylamino, or arylalkylamino having in each case 6 or 10 carbon atoms in the aryl group and, where appropriate, 1 to 4 carbon atoms in any alkyl moiety, R⁴ represents hydrogen, hydroxyl, amino, or cyano; represents C₂-C₁₀-alkylideneamino; represents optionally fluorine-, chlorine-, bromine-, cyano-, C₁-C₄-alkoxy-, C₁-C₄-alkyl-carbonyl-, or C₁-C₄-alkoxy-carbonyl-substituted alkyl having 1 to 6 carbon atoms; represents optionally fluorine-, chlorine-, and/or bromine-substituted alkenyl or alkynyl having in each case 2 to 6 carbon atoms; represents optionally fluorine-, chlorine-, bromine-, cyano-, C₁-C₄-alkoxy-, or C₁-C₄-alkoxy-carbonyl-substituted alkoxy, alkylamino, or alkyl-carbonylamino having in each case 1 to 6 carbon atoms in the alkyl group; represents alkenyloxy having 3 to 6 carbon atoms; represents dialkylamino having in each case 1 to 4 carbon atoms in the alkyl groups; represents optionally fluorine-, chlorine-, bromine-, cyano-, and/or C₁-C₄-alkyl-substituted cycloalkyl, cycloalkylamino, or cycloalkylalkyl having in each case 3 to 6 carbon atoms in the alkyl group and, where appropriate, 1 to 4 carbon atoms in any alkyl moiety; or represents optionally fluorine-, chlorine-, bromine-, cyano- nitro-, C₁-C4-alkyl-, trifluoromethyl-, and/or C₁-C₄-alkoxy-substituted aryl or arylalkyl having in each case 6 or 10 carbon atoms in the aryl group and, where appropriate, 1 to 4 carbon atoms in any alkyl moiety, or R³ and R⁴ together represent optionally branched alkanediyl having 3 to 6 carbon atoms, and (b) at least one compound that improves crop plant compatibility selected from the group consisting of the compounds 4-dichloroacetyl-1-oxa-4-aza-spiro[4.5]-decane (AD-67, MON-4660), 1-dichloroacetyl-hexahydro-3,3,8a-trimethylpyrrolo[1,2-a]-pyrimidin-6(2H)-one (dicyclonon, BAS-145138), 4-dichloroacetyl-3,4-dihydro-3-methyl-2H-1,4-benzoxazine (benoxacor), 1-methyl-hexyl 5-chloro-quinolin-8-oxy-acetate (cloquintocet-mexyl), 3-(2-chloro-benzyl)-1-(1-methyl-1-phenyl-ethyl)-urea (cumyluron), α-(cyanomethoximino)-phenylacetonitrile (cyometrinil), 2,4-dichloro-phenoxyacetic acid (2,4-D), 4-(2,4-dichloro-phenoxy)-butyric acid (2,4-DB), 1-(1-methyl-1-phenyl-ethyl)-3-(4-methyl-phenyl)-urea (daimuron, dymron), 3,6-dichloro-2-methoxy-benzoic acid (dicamba), S-1-methyl-1-phenyl-ethyl piperidine-1-thiocarboxylate (dimepiperate), 2,2-dichloro-N-(2-oxo-2-(2-propenylamino)-ethyl)-N-(2-propenyl)-acetamide (DKA-24), 2,2-dichloro-N,N-di-2-propenyl-acetamide (dichlormid), 4,6-dichloro-2-phenyl-pyrimidine (fenclorim), ethyl 1-(2,4-dichloro-phenyl)-5-trichloro-methyl-1H-1,2,4-triazole-3-carboxylate (fenchlorazole-ethyl—cf. also related compounds in EP-A-174562 and EP-A-346620), phenyl-methyl 2-chloro-4-trifluoromethyl-thiazole-5-carboxylate (flurazole), 4-chloro-N-(1,3-dioxolan-2-yl-methoxy)-α-trifluoro-acetophenone oxime (fluxofenim), 3-dichloroacetyl-5-(2-furanyl)-2,2-dimethyl-oxazolidine (furilazole, MON-13900), ethyl-4,5-dihydro-5,5-diphenyl-3-isoxazolecarboxylate (isoxadifen-ethyl), 1-(ethoxycarbonyl)-ethyl 3,6-dichloro-2-methoxybenzoate (lactidichlor), (4-chloro-o-tolyloxy)-acetic acid (MCPA), 2-(4-chloro-o-tolyloxy)-propionic acid (mecoprop), diethyl 1-(2,4-dichlorophenyl)-4,5-dihydro-5-methyl-1H-pyrazole-3,5-dicarboxylate (mefenpyr-diethyl), 2-dichloromethyl-2-methyl-1,3-dioxolane (MG-191), 2-propenyl-1-oxa-4-azaspiro[4.5]decane 4-carbodithioate (MG-838), 1,8-naphthalic anhydride, α-(1,3-dioxolan-2-yl-methoximino)-phenylacetonitrile (oxabetrinil), 2,2-dichloro-N-(1,3-dioxolan-2-yl-methyl)-N-(2-propenyl)-acetamide (PPG-1292), 3-dichloroacetyl-2,2-dimethyl-oxazolidine (R-28725), 3-dichloroacetyl-2,2,5-trimethyl-oxazolidine (R-29148), 4-(4-chloro-o-tolyl)-butyric acid, 4-(4-chloro-phenoxy)-butyric acid, diphenylmethoxyacetic acid, methyl diphenylmethoxyacetate (MON-7400), ethyl diphenylmethoxyacetate, methyl 1-(2-chloro-phenyl)-5-phenyl-1H-pyrazole-3-carboxylate, ethyl 1-(2,4-dichloro-phenyl)-5-methyl-1H-pyrazole-3-carboxylate, ethyl 1-(2,4-dichloro-phenyl)-5-isopropyl-1H-pyrazole-3-carboxylate, ethyl 1-(2,4-dichloro-phenyl)-5-(1,1-dimethyl-ethyl)-1H-pyrazole-3-carboxylate, ethyl 1-(2,4-dichloro-phenyl)-5-phenyl-1H-pyrazole-3-carboxylate, ethyl 5-(2,4-dichloro-benzyl)-2-isoxazoline-3-carboxylate, ethyl 5-phenyl-2-isoxazoline-3-carboxylate, ethyl 5-(4-fluoro-phenyl)-5-phenyl-2-isoxazoline-3-carboxylate, 1,3-dimethyl-but-1-yl 5-chloro-quinolin-8-oxy-acetate, 4-allyloxy-butyl 5-chloro-quinolin-8-oxy-acetate, 1-allyloxy-prop-2-yl 5-chloro-quinolin-8-oxy-acetate, methyl 5-chloro-quinolin-8-oxy-acetate, ethyl 5-chloro-quinolin-8-oxy-acetate, allyl 5-chloro-quinolin-8-oxy-acetate, 2-oxo-prop-1-yl 5-chloro-quinolin-8-oxy-acetate, diethyl 5-chloro-quinolin-8-oxy-malonate, diallyl 5-chloro-quinolin-8-oxy-malonate, diethyl 5-chloro-quinolin-8-oxy-malonate, 4-carboxy-chroman-4-yl-acetic acid (AC-304415), 4-chloro-phenoxyacetic acid, 3,3′-dimethyl-4-methoxy-benzophenone, 1-bromo-4-chloromethylsulphonyl-benzene, 1-[4-(N-2-methoxy-benzoylsulphamoyl)-phenyl]-3-methyl-urea (alias N-(2-methoxy-benzoyl)-4-[(methylamino-carbonyl)-amino]-benzenesulphonamide), 1-[4-(N-2-methoxy-benzoylsulphamoyl)-phenyl]-3,3-dimethyl-urea, 1-[4-(N-4,5-dimethylbenzoyl-sulphamoyl)-phenyl]-3-methyl-urea, 1-[4-(N-naphthylsulphamoyl)-phenyl]-3,3-dimethyl-urea, N-(2-methoxy-5-methyl-benzoyl)-4-(cyclopropylamino-carbonyl)-benzenesulphonamide, and a compound of formula (IIa)

where, for each of formulas (IIa), (IIb), or (IIc), n represents a number between 0 and 5, A¹ represents one of the divalent heterocyclic groups

A² represents optionally C₁-C₄-alkyl- and/or C₁-C₄-alkoxy-carbonyl-substituted alkanediyl having 1 or 2 carbon atoms, R⁵ represents hydroxyl, mercapto, amino, C₁-C₆-alkoxy, C₁-C₆-alkylthio, C₁-C₆-alkylamino, or di-(C₁-C₄-alkyl)-amino, R⁶ represents hydroxyl, mercapto or amino; or optionally C₁-C₄-alkyl, C₁-C₄-alkoxy, or C₂-C₄-alkenoxy-substituted C₁-C₆-alkoxy, C₂-C₆-alkenoxy, C₁-C₆-alkylthio, C₁-C₆-alkylamino, or di-(C₁-C₄-alkyl)-amino, R⁷ represents optionally fluorine-, chlorine-, and/or bromine-substituted C₁-C₄-alkyl, R⁸ represents hydrogen; optionally fluorine-, chlorine-, and/or bromine-substituted C₁-C₆-alkyl, C₂-C₆-alkenyl, or C₂-C₆-alkynyl; C₁-C₄-alkoxy-C₁-C₄-alkyl, dioxolanyl-C₁-C₄-alkyl, furyl, furyl-C₁-C₄-alkyl, thienyl, thiazolyl, or piperidinyl; or optionally fluorine-, chlorine-, and/or bromine-, or C₁-C₄-alkyl-substituted phenyl, R⁹ represents hydrogen; optionally fluorine-, chlorine-, and/or bromine-substituted C₁-C₆-alkyl, C₂-C₆-alkenyl, or C₂-C₆-alkynyl; C₁-C₄-alkoxy-C₁-C₄-alkyl, dioxolanyl-C₁-C₄-alkyl, furyl, furyl-C₁-C₄-alkyl, thienyl, thiazolyl, or piperidinyl, or optionally fluorine-, chlorine-, and/or bromine-, or C₁-C₄-alkyl-substituted phenyl; or R⁹ together with R⁸ represents C₃-C₆-alkanediyl or C₂-C₅-oxaalkanediyl, each of which is optionally substituted by C₁-C₄-alkyl, phenyl, furyl, a fused-on benzene ring, or by two substituents that together with the C atom to which they are attached form a 5- or 6-membered carbocycle, R¹⁰ represents hydrogen, cyano, or halogen; or represents optionally fluorine, chlorine-, and/or bromine-substituted C₁-C₄-alkyl, C₃-C₆-cycloalkyl, or phenyl, R¹¹ represents hydrogen; or optionally hydroxyl-, cyano-, halogen-, or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl, C₃-C₆-cycloalkyl, or tri-(C₁-C₄-alkyl)-silyl, R¹² represents hydrogen, cyano, or halogen; or represents optionally fluorine-, chlorine-, and/or bromine-substituted C₁-C₄-alkyl, C₃-C₆-cycloalkyl, or phenyl, X¹ represents nitro, cyano, halogen, C₁-C₄-alkyl, C₁-C₄-haloalkyl, C₁-C₄-alkoxy, or C₁-C₄-haloalkoxy, X² represents hydrogen, cyano, nitro, halogen, C₁-C₄-alkyl, C₁-C₄-haloalkyl, C₁-C₄-alkoxy, or C₁-C₄-haloalkoxy, X³ represents hydrogen, cyano, nitro, halogen, C₁-C₄-alkyl, C₁-C₄-haloalkyl, C₁-C₄-alkoxy, or C₁-C₄-haloalkoxy, and a compound of formula (IId)

formula (IIe)

where, for each of formulas (IId) or (IIe), n represents a number between 0 and 5, R¹³ represents hydrogen or C₁-C₄-alkyl, R¹⁴ represents hydrogen or C₁-C₄-alkyl, R¹⁵ represents hydrogen; optionally cyano-, halogen-, or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl, C₁-C₆-alkoxy, C₁-C₆-alkylthio, C₁-C₆-alkylamino or di-(C₁-C₄-alkyl)-amino; or optionally cyano-, halogen-, or C₁-C₄-alkyl-substituted C₃-C₆-cycloalkyl, C₃-C₆-cycloalkyloxy, C₃-C₆-cycloalkylthio, or C₃-C₆-cycloalkylamino, R¹⁶ represents hydrogen; optionally cyano-, hydroxyl-, halogen-, or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl; optionally cyano- or halogen-substituted C₃-C₆-alkenyl or C₃-C₆-alkynyl; or optionally cyano-, halogen-, or C₁-C₄-alkyl-substituted C₃-C₆-cycloalkyl, R¹⁷ represents hydrogen; optionally cyano-, hydroxyl-, halogen-, or C₁-C₄-alkoxy-substituted C₁-C₆-alkyl; optionally cyano- or halogen-substituted C₃-C₆-alkenyl or C₃-C₆-alkynyl; optionally cyano-, halogen-, or C₁-C₄-alkyl-substituted C₃-C₆-cycloalkyl; or optionally nitro-, cyano-, halogen-, C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-, or C₁-C₄-halogenoalkoxy-substituted phenyl; or R¹⁷ together with R¹⁶ represents optionally C₁-C₄-alkyl-substituted C₂-C₆-alkanediyl or C₂-C₅-oxaalkanediyl, X⁴ represents nitro, cyano, carboxyl, carbamoyl, formyl, sulphamoyl, hydroxyl, amino, halogen, C₁-C₄-alkyl, C₁-C₄-haloalkyl, C₁-C₄-alkoxy, or C₁-C₄-haloalkoxy, and X⁵ represents nitro, cyano, carboxyl, carbamoyl, formyl, sulphamoyl, hydroxyl, amino, halogen, C₁-C₄-alkyl, C₁-C₄-haloalkyl, C₁-C₄-alkoxy, or C₁-C₄-haloalkoxy.
 11. A composition according to claim 10 wherein Q¹ represents O or S, Q² represents O or S, R¹ represents optionally cyano-, fluorine-, chlorine-, methoxy-, or ethoxy-substituted methyl, ethyl, n- or i-propyl, or n-, i-, s-, or t-butyl; represents optionally cyano-, fluorine-, or chlorine-substituted propenyl, butenyl, propynyl, or butynyl; represents optionally cyano-, fluorine-, chlorine-, methyl-, or ethyl-substituted cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, or cyclohexylmethyl; represents optionally cyano-, fluorine-, chlorine-, bromine-, methyl-, ethyl-, n- or i-propyl-, trifluoromethyl-, methoxy-, ethoxy-, n- or i-propoxy-, difluoromethoxy-, or trifluoromethoxy-substituted phenyl, phenylmethyl, or phenylethyl; or represents optionally cyano-, fluorine-, chlorine-, bromine-, methyl-, ethyl-, n- or i-propyl-, methoxy-, ethoxy-, or n- or i-propoxy-substituted heterocyclyl or heterocyclyl-methyl, where each heterocyclyl group is selected from the group consisting of oxetanyl, thietanyl, furyl, tetrahydrofuryl, thienyl, and tetrahydrothienyl, R² represents hydrogen, cyano, fluorine, chlorine, or bromine; represents optionally cyano-, fluorine-, chlorine-, methoxy-, or ethoxy-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, methoxy, ethoxy, n- or i-propoxy, methoxycarbonyl, ethoxycarbonyl, n- or i-propoxycarbonyl, methylthio, ethylthio, n- or i-propylthio, methylsulphinyl, ethylsulphinyl, methylsulphonyl, or ethylsulphonyl; or represents optionally cyano-, fluorine-, or chlorine-substituted propenyl, butenyl, propynyl, butynyl, propenyloxy, butenyloxy, propynyloxy, or butynyloxy, R³ represents hydrogen, hydroxyl, mercapto, amino, cyano, fluorine, chlorine, or bromine; represents optionally fluorine-, chlorine-, cyano-, methoxy-, ethoxy-, n- or i-propoxy-, acetyl-, propionyl-, n- or i-butyroyl, methoxycarbonyl-, ethoxycarbonyl-, or n- or i-propoxycarbonyl-substituted methyl, ethyl, n- or i-propyl, or n-, i-, s-, or t-butyl; represents optionally fluorine-, chlorine-, and/or bromine-substituted ethenyl, propenyl, butenyl, ethynyl, propynyl, or butynyl; represents optionally fluorine-, chlorine-, cyano-, methoxy-, ethoxy-, n- or i-propoxy-, methoxycarbonyl-, ethoxycarbonyl-, or n- or i-propoxycarbonyl-substituted methoxy, ethoxy, n- or i-propoxy, n-, i-, s-, or t-butoxy, methylthio, ethylthio, n- or i-propylthio, n-, i-, s-, or t-butylthio, methylamino, ethylamino, n- or i-propylamino, n-, i-, s-, or t-butylamino, acetylamino, or propionylamino; represents propenyloxy, butenyloxy, ethynyloxy, propynyloxy, butynyloxy, propenylthio, butenylthio, propynylthio, butynylthio, propenylamino, butenylamino, propynylamino, or butynylamino; represents dimethylamino, diethylamino, or dipropylamino; represents optionally fluorine-, chlorine-, methyl-, and/or ethyl-substituted cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopentenyl, cyclohexenyl, cyclopropyloxy, cyclobutyloxy, cyclopentyloxy, cyclohexyloxy, cyclopropylthio, cyclobutylthio, cyclopentylthio, cyclohexylthio, cyclopropylamino, cyclobutylamino, cyclopentylamino, cyclohexylamino, cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, cyclohexylmethyl, cyclopropylmethoxy, cyclobutylmethoxy, cyclopentylmethoxy, cyclohexylmethoxy, cyclopropylmethylthio, cyclobutylmethylthio, cyclopentylmethylthio, cyclohexylmethylthio, cyclopropylmethylamino, cyclobutylmethylamino, cyclopentylmethylamino, or cyclohexylmethylamino; or represents optionally fluorine-, chlorine-, bromine-, methyl-, trifluoromethyl-, methoxy-, or methoxy-carbonyl-substituted phenyl, benzyl, phenoxy, benzyloxy, phenylthio, benzylthio, phenylamino, or benzylamino, and R⁴ represents hydrogen, hydroxyl, or amino; represents optionally fluorine-, chlorine-, cyano-, methoxy-, or ethoxy-substituted methyl, ethyl, n- or i-propyl, or n-, i-, s-, or t-butyl; represents optionally fluorine, chlorine, and/or bromine-substituted ethenyl, propenyl, butenyl, propynyl, or butynyl; represents optionally fluorine-, chlorine-, cyano-, methoxy-, or ethoxy-substituted methoxy, ethoxy, n- or i-propoxy, n-, i-, s-, or t-butoxy, methylamino, ethylamino, n- or i-propylamino, or n-, i-, s-, or t-butylamino; represents propenyloxy or butenyloxy; represents dimethylamino or diethylamino; represents optionally fluorine-, chlorine-, methyl-, and/or ethyl-substituted cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopropylamino, cyclobutylamino, cyclopentylamino, cyclohexylamino, cyclopropylmethyl, cyclobutylmethyl, cyclopentylmethyl, or cyclohexylmethyl; or represents optionally fluorine-, chlorine-, methyl-, trifluoromethyl-, and/or methoxy-substituted phenyl or benzyl, or R³ and R⁴ together represent trimethylene (propane-1,3-diyl), tetramethylene (butane-1,4-diyl), or pentamethylene (pentane-1,5-diyl).
 12. A composition according to claim 10 wherein Q¹ represents O, Q² represents O, R¹ represents optionally fluorine-, chlorine-, methoxy-, or ethoxy-substituted methyl, ethyl, or n- or i-propyl, R² represents fluorine, chlorine, or bromine; or represents optionally fluorine-, chlorine-, methoxy-, or ethoxy-substituted methyl, ethyl, or n- or i-propyl, R³ represents hydrogen, chlorine, or bromine; represents optionally fluorine-, chlorine-, methoxy-, ethoxy-, or n- or i-propoxy-substituted methyl, ethyl, or n- or i-propyl; represents optionally fluorine- or chlorine-substituted ethenyl, propenyl, butenyl, propynyl, or butynyl; represents optionally fluorine-, chlorine-, methoxy-, ethoxy-, or n- or i-propoxy-substituted methoxy, ethoxy, n- or i-propoxy, methylthio, ethylthio, n- or i-propylthio, methylamino, ethylamino, or n- or i-propylamino; represents propenyloxy, propynyloxy, propenylthio, propynylthio, propenylamino, or propynylamino; represents dimethylamino or diethylamino; represents optionally fluorine-, chlorine-, or methyl-substituted cyclopropyl, cyclopropyloxy, cyclopropylmethyl, or cyclopropylmethoxy, and R⁴ represents optionally fluorine-, chlorine-, methoxy-, or ethoxy-substituted methyl, ethyl, or n- or i-propyl; represents optionally fluorine- or chlorine-substituted ethenyl, propenyl, or propynyl; represents optionally fluorine-, chlorine-, methoxy-, or ethoxy-substituted methoxy, ethoxy, or n- or i-propoxy; represents methylamino; or represents cyclopropyl.
 13. A composition according to claim 10 wherein n represents the numbers 0, 1, 2, 3, or 4, A² represents optionally methyl-, ethyl-, methoxycarbonyl-, or ethoxycarbonyl-substituted methylene or ethylene, R⁵ represents hydroxyl, mercapto, amino, methoxy, ethoxy, n- or i-propoxy, n-, i-, s-, or t-butoxy, methylthio, ethylthio, n- or i-propylthio, n-, i-, s-, or t-butylthio, methylamino, ethylamino, n- or i-propylamino, n-, i-, s-, or t-butylamino, dimethylamino, or diethylamino, R⁶ represents hydroxyl, mercapto, amino, methoxy, ethoxy, n- or i-propoxy, n-, i-, s-, or t-butoxy, methylthio, ethylthio, n- or i-propylthio, n-, i-, s-, or t-butylthio, methylamino, ethylamino, n- or i-propylamino, n-, i-, s-, or t-butylamino, dimethylamino, or diethylamino, R⁷ represents optionally fluorine-, chlorine-, and/or bromine-substituted methyl, ethyl, or n- or i-propyl, R⁸ represents hydrogen; optionally fluorine- and/or chlorine-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, propenyl, butenyl, propynyl, butynyl, methoxymethyl, ethoxymethyl, methoxyethyl, ethoxyethyl, dioxolanylmethyl, furyl, furylmethyl, thienyl, thiazolyl, piperidinyl; or optionally fluorine-, chlorine-, methyl-, ethyl-, n- or i-propyl-, or n-, i-, s-, or t-butyl-substituted phenyl, R⁹ represents hydrogen; optionally fluorine- and/or chlorine-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, propenyl, butenyl, propynyl, butynyl, methoxymethyl, ethoxymethyl, methoxyethyl, ethoxyethyl, dioxolanylmethyl, furyl, furylmethyl, thienyl, thiazolyl, piperidinyl; or optionally fluorine-, chlorine-, methyl-, ethyl-, n- or i-propyl-, or n-, i-, s-, or t-butyl-substituted phenyl; or R⁹ together with R⁸ represents one of the radicals —CH₂—O—CH₂-CH₂— or —CH₂-CH₂—O—CH₂-CH₂—, which are optionally substituted by methyl, ethyl, furyl, phenyl, a fused benzene ring, or by two substituents that together with the C atom to which they are attached form a 5- or 6-membered carbocycle, R¹⁰ represents hydrogen, cyano, fluorine, chlorine, or bromine; or represents optionally fluorine-, chlorine-, and/or bromine-substituted methyl, ethyl, n- or i-propyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, or phenyl, R¹¹ represents hydrogen; or optionally hydroxyl-, cyano-, fluorine-, chlorine, methoxy-, ethoxy-, or n- or i-propoxy-substituted methyl, ethyl, n- or i-propyl, or n-, i-, s-, or t-butyl, R¹² represents hydrogen, cyano, fluorine, chlorine, or bromine; or represents optionally fluorine-, chlorine-, and/or bromine-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, or phenyl, X¹ represents nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, difluoromethyl, dichloromethyl, trifluoromethyl, trichloromethyl, chlorodifluoromethyl, fluorodichloromethyl, methoxy, ethoxy, n- or i-propoxy, difluoromethoxy, or trifluoromethoxy, X² represents hydrogen, nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, difluoromethyl, dichloromethyl, trifluoromethyl, trichloromethyl, chlorodifluoromethyl, fluorodichloromethyl, methoxy, ethoxy, n- or i-propoxy, difluoromethoxy, or trifluoromethoxy, X³ represents hydrogen, nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, difluoromethyl, dichloromethyl, trifluoromethyl, trichloromethyl, chlorodifluoromethyl, fluorodichloromethyl, methoxy, ethoxy, n- or i-propoxy, difluoromethoxy, or trifluoromethoxy, R¹³ represents hydrogen, methyl, ethyl, or n- or i-propyl, R¹⁴ represents hydrogen, methyl, ethyl, or n- or i-propyl, R¹⁵ represents hydrogen; optionally cyano-, fluorine-, chlorine-, methoxy- ethoxy-, or n- or i-propoxy-substituted methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, methoxy, ethoxy, n- or i-propoxy, n-, i-, s-, or t-butoxy, methylthio, ethylthio, n- or i-propylthio, n-, i-, s-, or t-butylthio, methylamino, ethylamino, n- or i-propylamino, n-, i-, s-, or t-butylamino, dimethylamino, or diethylamino; or optionally cyano-, fluorine-, chlorine-, bromine-, methyl-, ethyl-, or n- or i-propyl-substituted cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cyclopropyloxy, cyclobutyloxy, cyclopentyloxy, cyclohexyloxy, cyclopropylthio, cyclobutylthio, cyclopentylthio, cyclohexylthio, cyclopropylamino, cyclobutylamino, cyclopentylamino, or cyclohexylamino, R¹⁶ represents hydrogen; optionally cyano-, hydroxyl-, fluorine- chlorine-, methoxy-, ethoxy-, or n- or i-propoxy-substituted methyl, ethyl, n- or i-propyl, or n-, i-, or s-butyl; optionally cyano-, fluorine-, chlorine-, or bromine-substituted propenyl, butenyl, propynyl, or butynyl; or optionally cyano-, fluorine-, chlorine-, bromine-, methyl- ethyl-, n- or i-propyl-substituted cyclopropyl, cyclobutyl, cyclopentyl, or cyclohexyl, R¹⁷ represents hydrogen; optionally cyano-, hydroxyl-, fluorine- chlorine-, methoxy-, ethoxy-, or n- or i-propoxy-substituted methyl, ethyl, n- or i-propyl, or n-, i-, or s-butyl; optionally cyano-, fluorine-, chlorine-, or bromine-substituted propenyl, butenyl, propynyl, or butynyl; or optionally cyano-, fluorine-, chlorine-, bromine-, methyl- ethyl-, or n- or i-propyl-substituted cyclopropyl, cyclobutyl, cyclopentyl, or cyclohexyl; or optionally nitro-, cyano-, fluorine-, chlorine-, bromine-, methyl-, ethyl-, n- or i-propyl-, n-, i-, s-, or t-butyl-, trifluoromethyl-, methoxy-, ethoxy-, n- or i-propoxy-, difluoromethoxy-, or trifluoromethoxy-substituted phenyl; or R¹⁷ together with R¹⁶ represents in each case optionally methyl- or ethyl-substituted butane-1,4-diyl (trimethylene), pentane-1,5-diyl, 1-oxabutane-1,4-diyl, or 3-oxapentane-1,5-diyl, X⁴ represents nitro, cyano, carboxyl, carbamoyl, formyl, sulphamoyl, hydroxyl, amino, fluorine, chlorine, bromine, methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, trifluoromethyl, methoxy, ethoxy, n- or i-propoxy, difluoromethoxy, or trifluoromethoxy, and X⁵ represents nitro, cyano, carboxyl, carbamoyl, formyl, sulphamoyl, hydroxyl, amino, fluorine, chlorine, bromine, methyl, ethyl, n- or i-propyl, n-, i-, s-, or t-butyl, trifluoromethyl, methoxy, ethoxy, n- or i-propoxy, difluoromethoxy, or trifluoromethoxy.
 14. A composition according to claim 10 wherein the crop-plant-compatibility-improving compound is one or more compounds selected from the group consisting of the active compounds AD-67, cloquintocet-mexyl, dichlormid, fenchlorazole-ethyl, isoxadifen-ethyl, mefenpyr-diethyl, MON-7400, flurazole, furilazole, fenchlorim, cumyluron, dymron, a compound of formula (IId)

in which R¹³ and R¹⁴ each represent hydrogen, R¹⁵ represents methoxymethyl, (X⁴)_(n) represents 2-methoxy, and (X⁵)_(n) represents hydrogen, and a compound of formula (IIe)

in which R¹³ and R¹⁶ each represent hydrogen, R¹⁷ represents cyclopropyl, (X⁴)_(n) represents the group 2-methoxy or the two groups 2-methoxy and 5-methyl, and (X⁵)_(n) represents hydrogen.
 15. A composition according to claim 10 comprising an active compound combination comprising (a) a compound of formula (I)

or a salt thereof, in which Q¹ and Q² each represent oxygen, R¹, R², and R⁴ each represent methyl, and R³ represents methoxy, and (b) a crop-plant-compatibility-improving compound of formula (IIe)

in which R¹³ and R¹⁶ each represent hydrogen, R¹⁷ represents cyclopropyl, (X⁴)_(n) represents 2-methoxy, and (X⁵)_(n) represents hydrogen.
 16. A method for controlling undesirable plants comprising allowing an effective amount of a composition according to claim 10 to act on undesirable plants and/or their habitat.
 17. A process for preparing a herbicidal composition comprising mixing a composition according to claim 10 with one or more surfactants and/or extenders. 